Chapter 10 Problems - UCCS

5. Starch Solution: Prepare an emulsion of 5 g soluble starch in a mortar or beaker with a small amount of distilled water. Pour this emulsion into 1 L of boiling water, allow to boil a few minutes, and let settle overnight. Use the clear supernate. This solution may be preserved by the addition of 1.25 g salicylic acid/L and storage at 4(C. ................
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